added prototype for HL_vertices

diff --git a/hexagon.h b/hexagon.h
index 7ca8001cebc609f307db55ef14f868ac86a7eb8a..6768a62275e23436e4ce8b29cc35c1cbbdcbd8ba 100644 (file)
--- a/hexagon.h
+++ b/hexagon.h
@@ -141,6 +141,7 @@ int HL_findpath(struct HL_astar *s, int loops);
 void HL_astar_free(struct HL_astar *s);
 struct HL_astar *HL_astar_clear(struct HL_astar *s);
 struct HL_astar *HL_astar_init(struct HL_astar *s);
+void HL_vertices(int cantor, double *vc);
 
 extern double HL_fand[16];
 extern float HL_fanf[16];